Portable monitor



FIG. 1 is a top front perspective view of a portable monitor showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a bottom front perspective view thereof;

FIG. 9 is an enlarged view taken from the indication in FIG. 1 ;

FIG. 10 is an enlarged view taken from the indication in FIG. 6 ;

FIG. 11 is an enlarged view taken from the indication in FIG. 7 ; and,

FIG. 12 is an enlarged view taken from the indication in FIG. 8 .

The broken lines in the drawings depict portions of the portable monitor that form no part of the claimed design. 

CLAIM The ornamental design for a portable monitor, as shown and described. 